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I got this CBE mould years ago and just dug it out for my LE No5. The rifle was throat slugged when it first showed up. The groove is .313 - .314 and the bore is in good shape. It was hammer slugged at .313 but it was not cleaned completely. The throat is .315. The lead will be home alloyed Lyman #2.
Anyone used this mould for the 303 Brit? I'm hoping the southern hemisphere Commonwealth shooters might have load and performance info to share.
Thanks Bob
My Lyman cast bullet handbook shows loads for the 303 briyish cartridge.
They used a Lyman #311299 @205 grains
start unique 10.5grs and stop at 14.9 grs
Your bullet is lighter than the 311299 so you could increase the maximum to 16 grs of unique. Good chance your CBC174 grain bullet may weigh in more than than what the mold manufacturer shows, but less than the Lyman 311299 @205 grains.
Another one is red dot
start 10.0 and max is 12.5 grains again this is again with the Lyman 311299.
C.E. Harris has a load which is referred to as the "LOAD" 16grs red dot should also work.
Frank
Shouldn't that be 13 gr. Red Dot or 16 gr. #2400?
What diameter would the base shank cast at?
I haven't done a lot of plain cast in my Brits. I did once manage a sub-MOA group with a mold of my own making. The nose shank was a bit undersize in the throat so I coated it with a waxy stuff to support it. That same coating also provided the lube.
My thinking now is to create a boolit with a nose section that seats into the throat leade and a base shank that seats into an unsized neck. The idea is that the boolit can go nowhere but dead straight into the rifling. Boolit length and hence weight is then determined by the magazine. This concept has worked with a short paper patched boolit, giving very good accuracy.
I am busy setting up my lathe once again and am planning on making just such a plain cast boolit mold.
Just a thought and something I am yet to try and that is powder coating to make the boolit fat enough.